A RFID-based multi-label radio frequency identification system and method

Abstract

The present invention relates to an RFID-based multi-label radio frequency identification system and method. The system includes a mutually independent RFID reader, a passive coupling antenna and a plurality of RFID tags, and the passive coupling antenna and the plurality of RFID tags are placed Within the preset space range, the RFID reader is respectively radio-frequency coupled with a plurality of the RFID tags through the passive coupling antenna, and is used to read a plurality of the RFID tags at the same time; wherein, the RFID tag is specifically An RFID tag with an interface and a separate transceiver antenna; the RFID reader is specifically an RFID reader with an interface and a separate transceiver antenna. The present invention can simultaneously read a plurality of RFID tags, can increase the reading distance and can be connected with external devices.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to an RFID-based multi-label radio frequency identification system and method. Background technique [0002] RFID (Radio Frequency Identification) is a reflective communication technology that has been widely used in logistics, public transportation, door monitoring systems and other scenarios. RFID includes RFID reader and RFID tag (TAG). The RFID reader is an active device that transmits information to the TAG by transmitting and modulating a high-frequency carrier; the TAG is mostly a passive device. Change, this change can be detected by the RFID reader and thus read the information of the TAG. The existing RFID technology often has a very limited reading distance. For example, the 15693 protocol is generally only about 10cm, while the 14443 is closer. The "long-distance" 900MHz RFID distance can only reach about 3m. In addition, most of the existing TAG terminals have n...

AI Technical Summary

Problems solved by technology

The existing RFID technology often has a very limited reading distance. For example, the 15693 protocol is generally only about 10cm, while the 14443 is closer. The "long-distance" 900MHz RFID distance can only reach about 3m

In addition, most of the existing TAG terminals have no sensory capabilities, and it is impossible to add specific sensors to complete the collection of specific information, which greatly limits the usage scenarios of these products

For example, in a centralized box, assuming that there are multiple identical items, when it is necessary to monitor the information of these items in real time, such as temperature, the existing solutions generally require batteries, which puts a lot of pressure on the monitoring cost , but also may cause secondary pollution

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